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Ive had a nexplanon implant since jan '17. Ive had regular…

Customer Question

Ive had a nexplanon...

Ive had a nexplanon implant since jan '17. Ive had regular periods since the insertion. In november my ob found a 5cm cyst on my right ovary and a 3cm mass on my uterus. I was given a week prescription of Aygestin. I was informed i would have a heavy period when i stopped the aygestin, thos did not happen. I have not had a period since november 28th. Ive had pregnancy symptoms, but negative hpt. Could my lack of a period be caused by the interaction of the 2 medications? Could I be pregnant?

Experience: MD (Obst&Gynecology). More than 20 years practise in private practice

Verified

Hello,

Welcome and thank you for the question.

Both Aygestin and Nexplanon are progesterones - they will not interact with each other.

But taking the two together will increase the progesterone level in the body. While stopping the Aygestin should give you a period within 7 days of the last pill, it is likely that the high progesterone level has caused some amount of hormonal imbalance which is preventing the period from occurring.

I do not think that you are pregnant - the nexplanon is a very effective birth control method. Plus, the HPT is also quite accurate and if it is negative after 10 days of the missed period, then pregnancy can be rued out.

Another possibility is that the ovarian cyst is preventing the occurrance of the period.

Please consult your doctor and ask for an ultrasound to check the uterus and the ovaries once again.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.